Signal processing device and signal processing method

4. The signal processing device according to claim 2, wherein the memristor array is further configured to segment the first signal that has been received to form signal segments, and apply respective signal segments to corresponding memristor units in the plurality of memristor units.

5. The signal processing device according to claim 2, wherein the memristor array is configured to receive a switch control signal through at least one word line in the plurality of word lines, and select a memristor unit to be applied with the first signal based on the switch control signal.

6. The signal processing device according to claim 1, wherein each of the plurality of memristor units further comprises a transistor connected in series with the memristor in each of the plurality of memristor units.

7. The signal processing device according to claim 1, wherein the memristor in each of the plurality of memristor units is a continuously adjustable multi-resistance state memristor.

8. The signal processing device according to claim 1, further comprising a pre-processing circuit, wherein the pre-processing circuit is configured to pre-process the first signal received by the receiver, so as to form a pre-processed signal having an amplitude within a predetermined range.

9. The signal processing device according to claim 8, wherein the pre-processing circuit comprises at least one of an amplifying circuit and a level shift circuit.

10. The signal processing device according to claim 8, wherein the predetermined range is a resistive voltage interval of the memristor or a read voltage interval of the memristor.

11. The signal processing device according to claim 1, wherein the first signal received by the receiver is an electroencephalogram signal.

17. The signal processing method according to claim 12, further comprising: pre-processing, by a pre-processing circuit, the first signal that has been received, so as to form a pre-processed signal having an amplitude within a predetermined range.

18. The signal processing method according to claim 17, wherein the pre-processing comprises at least one selected from the group consisting of amplifying the first signal that has been received and level shifting the first signal that has been received.

19. The signal processing method according to claim 17, wherein the predetermined range is a resistive voltage interval of the memristor or a read voltage interval of the memristor.